CN110007537B - Display device - Google Patents
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- CN110007537B CN110007537B CN201910323803.3A CN201910323803A CN110007537B CN 110007537 B CN110007537 B CN 110007537B CN 201910323803 A CN201910323803 A CN 201910323803A CN 110007537 B CN110007537 B CN 110007537B
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- conductive structure
- display device
- backlight module
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/22—Antistatic materials or arrangements
Abstract
The invention discloses a display device, comprising: a display area and a first non-display area surrounding the display area; the display panel comprises an array substrate and an opposite substrate; the backlight module is arranged on one side of the array substrate, which is far away from the opposite substrate; the first conductive structure is arranged on one side, close to the backlight module, of the array substrate and electrically connected with the backlight module. Through set up first conductive structure at one side that array substrate is close to backlight unit, because first conductive structure can be with leading-in to backlight unit of the peripheral static charge of display device, carry out the static dissipation through backlight unit, effectively avoid the peripheral static charge of display device to get into inside the display panel, lead to the static to remain in the intraformational problem of liquid crystal, ensured display device's normal demonstration.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display device.
Background
At present, display devices such as liquid crystal display devices and organic light emitting display devices have a dominant position in the current market of display devices due to their characteristics of small size, light weight, thin thickness, low power consumption, no radiation, and the like.
However, in actual use, the display device (particularly, a liquid crystal display device) has a problem of static electricity accumulation, which causes a reduction in the quality of a display screen and affects the display effect.
Disclosure of Invention
The invention provides a display device, which can reduce static charge accumulation around the display device and improve the display effect of the display device.
An embodiment of the present invention provides a display device, including: a display area and a first non-display area surrounding the display area;
the display panel comprises an array substrate and an opposite substrate;
the backlight module is arranged on one side of the array substrate, which is far away from the opposite substrate;
the first conductive structure is arranged on one side, close to the backlight module, of the array substrate, and the first conductive structure is electrically connected with the backlight module.
Compared with the prior art, the display device at least achieves the following beneficial effects:
according to the display device provided by the invention, the first conductive structure is arranged on one side of the array substrate close to the backlight module, and static charges around the display device can be introduced into the backlight module and released in the backlight module, so that the static charges can not be accumulated around the display device, the static protection capability of the display device is effectively improved, and the problem that the display area of the display device is blurred in display or distorted in color due to the fact that external static charges easily enter the display panel in the prior art is solved. Compared with the mode that the static electricity leading-out structure is arranged on the side face of the display device in the prior art, the first conducting structure of the display device provided by the embodiment of the invention does not increase the area of the first non-display area, reduces the screen occupation ratio of the display device and is beneficial to the overall screen design.
Drawings
Fig. 1 is a schematic top view of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line Q-Q' of FIG. 1;
fig. 3 is a schematic cross-sectional view of a display device according to an embodiment of the invention;
FIG. 4 is a schematic plan view illustrating a black matrix according to an embodiment of the present invention;
fig. 5 is a schematic plan view of a first conductive structure provided in an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view illustrating another display device according to an embodiment of the present invention;
fig. 7 is a schematic top view of a display device according to another embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view taken along line W-W' of FIG. 7;
fig. 9 is a schematic cross-sectional view illustrating a display device according to another embodiment of the present invention;
fig. 10 is a schematic cross-sectional view illustrating a display device according to another embodiment of the present invention;
fig. 11 is a schematic cross-sectional view of another display device according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic top view of a display device according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view taken along a direction Q-Q' in fig. 1. Referring to fig. 1 and fig. 2, a display device according to an embodiment of the present invention includes: a display area AA and a first non-display area a1 surrounding the display area AA. The display device further includes a display panel 10, a backlight module 20 and a first conductive structure 30. The display panel 10 includes an array substrate 11 and an opposite substrate 12; the backlight module 20 is arranged on one side of the array substrate 11, which is far away from the opposite substrate 12; the first conductive structure 30 is disposed on a side of the array substrate 11 close to the backlight module 20, and the first conductive structure 30 is electrically connected to the backlight module 20.
Specifically, as shown in fig. 1 and 2, the display panel 10 includes an array substrate 11 and an opposite substrate 12, the array substrate 11 and the opposite substrate 12 which are oppositely disposed are attached to each other through a sealant 13, so that a box-shaped space can be formed between the array substrate 11 and the opposite substrate 12, a liquid crystal layer 14 can be disposed in the box-shaped space, and liquid crystal molecules in the liquid crystal layer 14 can be confined in the box-shaped space through the sealant 13, thereby preventing overflow. Part of static charges around the display device easily enter the liquid crystal layer 14 in the display panel 10 from the sealant 13, so that the static charges remain in the liquid crystal layer 14, which affects the normal display of the display device. In addition, since the first non-display area a1 is provided with circuit traces, when electrostatic charges enter the display panel 10, the circuit traces in the first non-display area a1 are damaged; even when the voltage around the display device is too high, for example, the voltage around the display device is greater than 12KV, the electrostatic charges entering the display panel 10 may break down the sealant 13, thereby causing the liquid crystal molecules to flow out, and further affecting the normal display of the display device. In this embodiment, the first conductive structure 30 is disposed on a side of the array substrate 11 close to the backlight module 20, and the first conductive structure 30 is electrically connected to the backlight module 20. Static charges around the display device are conducted away through the first conductive structure 30, and because the first conductive structure 30 is electrically connected with the backlight module 20, the first conductive structure 30 can conduct the static charges into the backlight module 20, and the static charges are dissipated through the backlight module 20, so that the static charges are prevented from being accumulated around the display device.
It is to be understood that the array substrate 11 and the opposite substrate 12 respectively include a plurality of film layers, and for convenience of description, only some, but not all, of the film layers related to the present invention are shown in the drawings.
In the existing display device, partial static charges around the display device easily enter the display panel from structures such as frame glue and the like, so that static electricity remains in the liquid crystal box and normal display of the display device is influenced. If the static electricity leading-out structure is arranged on the side face of the display device, the area of the first non-display area is increased, and the screen occupation ratio of the display device is reduced. In the display device provided by the embodiment, the first conductive structure 30 is arranged on one side of the array substrate 11 close to the backlight module 20, and static charges around the display device are conducted away through the first conductive structure 30, and because the first conductive structure 30 is electrically connected with the backlight module 20, the first conductive structure 30 can conduct the static charges into the backlight module 20, and the static charges are dissipated through the backlight module 20, so that the static charges are prevented from being accumulated around the display device, and the static protection capability of the display device can be effectively improved; the first conductive structure is positioned below the display panel, so that electrostatic charges are conducted away by the first conductive structure, and the electrostatic charges are effectively prevented from directly entering the display panel to influence the display effect of the display device; meanwhile, the first conductive structure 30 guides static charges into the backlight module 20, and static charges are dissipated through the backlight module 20 without additionally increasing wiring, so that wiring design of the display device is simplified, and space utilization rate of the display device is improved. In addition, set up first conductive structure in display panel's below, can not increase the area in first non-display area, reduce display device's screen and account for the ratio, be favorable to realizing comprehensive screen design.
Alternatively, the first conductive structure 30 may be prepared on the side of the array substrate 11 close to the backlight module 20, and then other film layers and circuit structures may be prepared on the side far from the backlight module 20. The first conductive structure 30 is firstly prepared on the array substrate 11, and then other film layers and circuit structures are prepared, so that the influence of the preparation process of the first conductive structure 30 on the other film layers and circuit structures on the array substrate can be avoided.
Optionally, fig. 3 is a schematic cross-sectional structure diagram of a display device according to an embodiment of the present invention, and as shown in fig. 3, the display device further includes a cover plate 40, where the cover plate 40 needs to ensure a high light transmittance.
Based on the above solution, optionally, with reference to fig. 2, the first conductive structure 30 is made of a transparent material.
The first conductive structure 30 may include, for example, one or a combination of indium tin oxide, indium zinc oxide, indium gallium zinc oxide, or the like.
Specifically, when the first conductive structure 30 is made of a transparent material, the first conductive structure 30 may be tiled on the entire array substrate 11, and in this technical solution, patterning of the first conductive structure 30 is not required, which simplifies the process steps. It is understood that, when the first conductive structure 30 is made of a transparent material, the first conductive structure 30 may also be patterned, and the pattern of the first conductive structure 30 is not particularly limited in this embodiment.
On the basis of the above solution, optionally, fig. 4 is a schematic plane structure diagram of a black matrix provided in the embodiment of the present invention, fig. 5 is a schematic plane structure diagram of a first conductive structure provided in the embodiment of the present invention, fig. 6 is a schematic cross-sectional structure diagram of another display device provided in the embodiment of the present invention, as shown in fig. 4, fig. 5 and fig. 6, the opposite substrate 12 includes a black matrix 121; the first conductive structure 30 is located within the black matrix 121 in a vertical projection to the opposite substrate 12.
The first conductive structure 30 may include one or more combinations of metals or metal oxides, for example. The opposite substrate 12 further includes a substrate 122, and the black matrix 121 may be prepared on the substrate 122, for example. It should be noted that the opposite substrate 12 further includes other film layers, such as: a color resist layer, a planarization layer, etc., and fig. 6 shows the relative position relationship between the black matrix 121 and the first conductive structure 30 for clarity, so that other film layers of the opposite substrate 12 are not shown.
Specifically, when the first conductive structure 30 is not made of a transparent material, in order to prevent the first conductive structure 30 from affecting the display and affecting the aperture ratio of the display panel, the first conductive structure 30 needs to be patterned so that the vertical projection of the first conductive structure 30 on the opposite substrate 12 is located in the black matrix 121 (see fig. 6).
The first conductive structure 30 and the black matrix 121 may be made of the same material, and the shapes of the first conductive structure 30 and the black matrix 121 may be completely the same, and when the first conductive structure 30 and the black matrix 121 are made of the same material and have completely the same shape, the same equipment and process may be used.
Alternatively, the first conductive structure 30 and the black matrix 121 may be made of different materials. When the black matrix 121 is manufactured by using a normal process and material, the process parameters and the process conditions do not need to be changed, and the display and touch effects on the display panel with the touch function can be avoided. The first conductive structure 30 is made of a low-resistance conductive material, that is, a material different from the black matrix 121, so that the display and touch of the display panel with a touch function can be prevented from being affected, and a static electricity conducting function can be achieved. Optionally, the sheet resistance of the first conductive structure 30 is Z1, Z1 < 108Ω/□。
It should be noted that the material of the first conductive structure 30 is not specifically limited in this embodiment, as long as the sheet resistance of the first conductive structure 30 is less than 108Omega/□.
When the square resistance of the first conductive structure 30 is less than 108Omega/□, static charges around the display device can be quickly conducted away, and static charges can be prevented from accumulating around the display device, and further, the static charges can be prevented from entering the liquid crystal layer 14 in the display panel 10And (4) a section.
In the technical scheme, the static charge around the display device is quickly conducted away to the backlight module 20 through the first conductive structure 30 with smaller square resistance, and is dissipated through the backlight module 20, so that the static charge is prevented from accumulating around the display device, and the static protection capability of the display device can be effectively improved; the first conductive structure is positioned below the display panel, so that static charges are quickly conducted away by the first conductive structure, and the static charges are further prevented from directly entering the display panel to influence the display effect of the display device; meanwhile, the first conductive structure 30 guides static charges into the backlight module 20, and static charges are dissipated through the backlight module 20 without additionally increasing wiring, so that wiring design of the display device is simplified, and space utilization rate of the display device is improved. In addition, set up first conductive structure in display panel's below, can not increase the area in first non-display area, reduce display device's screen and account for the ratio, be favorable to realizing comprehensive screen design.
On the basis of the above scheme, optionally, please continue to refer to fig. 3, the display device further includes a first polarizer 70, wherein the first polarizer 70 is located on one side of the first conductive structure 30 close to the backlight module 20; the first conductive structure 30 is electrically connected to the backlight module 20 through the first polarizer 70. Wherein the first polarizer 70 is a low-resistance polarizer, the square resistance of the first polarizer 70 is Z2, and Z2 is less than 108Ω/□。
Specifically, the first polarizer 70 is located between the first conductive structure 30 and the backlight module 20, and the first conductive structure 30 is electrically connected to the backlight module 20 through the first polarizer 70. When the square resistance of the first polarizer 70 is less than 108Omega/□, the first conductive structure 30 conducts static charge to the backlight module 20 through the first polarizer 70, and dissipates static charge through the backlight module 20.
In the present embodiment, a square resistance smaller than 10 is disposed on a side of the first conductive structure 30 close to the backlight module 208The omega/□ first polarizer 70, when the first conductive structure 30 conducts the static charges around the display device away, the static charges conducted away by the first conductive structure 30 are quickly conducted away to the backlight module 20 through the first polarizer 70 with smaller sheet resistance, and pass through the backlight module 20The optical module 20 dissipates static electricity, so that static electricity is prevented from accumulating around the display device, and the static electricity protection capability of the display device can be effectively improved; because the first conductive structure 30 and the first polarizer 70 are located below the display panel, the static charge is rapidly conducted to the first polarizer 70 by the first conductive structure, and then rapidly conducted to the backlight module 20 by the first polarizer 70, so as to further prevent the static charge from directly entering the display panel to affect the display effect of the display device; meanwhile, the first conductive structure 30 and the first polarizer 70 conduct static charges into the backlight module 20, and static electricity is dissipated through the backlight module 20 without additionally increasing wiring, so that wiring design of the display device is simplified, and space utilization rate of the display device is improved.
Based on the above solution, optionally, fig. 7 is a schematic top view structure diagram of another display device according to an embodiment of the present invention, fig. 8 is a schematic cross-sectional structure diagram along the direction W-W' in fig. 7, please refer to fig. 7 and fig. 8, the display device further includes a second non-display area a2 and at least one hollow portion CC; the second non-display area a2 surrounds the hollow CC, and the display area AA surrounds the second non-display area a 2.
According to the technical scheme, the display area AA is punched to form the second non-display area A2 and at least one hollow-out part CC, and the light sensing devices such as a camera are arranged at the hollow-out part CC to improve the screen occupation ratio of the full-face screen.
It should be noted that the specific position of the hollow portion CC on the display device may be designed according to the actual use requirement, and the hollow portion CC may be a through hole penetrating through the thickness direction of the entire display device; the blind holes may also penetrate through the backlight module 20 but do not penetrate through the display panel 10, that is, in order to meet the requirement of light transmittance in the hole region during the operation of the camera, only the film layer with color or having a large influence on the transmittance is removed, and only a part of the transparent film layer is not removed or reserved, under the condition that the function of the device installed in the blind holes is not affected, for example, when the camera is installed in the punched region.
The shape of the hollow-out portion CC may also be designed according to actual use requirements, such as a circle, an ellipse, a square, and the like, in order to use the technical solution of the present invention more intuitively, fig. 7 only illustrates the hollow-out portion CC as a circle, and details are not described further in the following.
On the basis of the above scheme, optionally, please continue to refer to fig. 7 and 8, where the hollow portion CC penetrates through the display device along the thickness direction of the display device; disposing the encapsulation structure 15 in the second non-display area a 2; the package structure 15 is located between the array substrate 11 and the opposite substrate 12. The second non-display area a2 is provided with a package structure 15, and liquid crystal molecules in the liquid crystal layer 14 can be confined in a box-shaped space by the sealant 13 and the package structure 15, thereby preventing overflow. The encapsulation structure 15 may be made of the same material as the sealant 13.
Specifically, when the display device is provided with the hollow portion CC, static charges easily enter the liquid crystal layer 14 in the display panel 10 through the package structure 15 through the hollow portion CC, so that static electricity remains in the liquid crystal layer 14, which affects normal display of the display device. In this embodiment, the first conductive structure 30 can conduct away the static charge at the hollow portion CC, so as to prevent the static charge from accumulating at the hollow portion CC, and further prevent the static charge from entering the liquid crystal layer 14 in the display panel 10 through the package structure 15. Because the first conductive structure 30 is electrically connected to the backlight module 20, the first conductive structure 30 guides static charges into the backlight module 20, and the static charges are dissipated through the backlight module 20, so that the static charges are prevented from accumulating around the hollow portion CC, and the static protection capability of the display device can be effectively improved; and because the first conductive structure is located below the display panel, the electrostatic charge at the hollow portion CC is guided away by the first conductive structure, the electrostatic charge is effectively prevented from directly entering the display panel through the hollow portion to influence the display effect of the display device, and the normal display of the display device is ensured.
In the display device provided by the prior art, the hollow portion is mainly used for placing and installing devices such as a camera, and static charges easily enter the inside of the display panel through the hollow portion, so that static electricity is remained in the liquid crystal box, and normal display of the display device is affected. If the electrostatic conduction device is arranged on the hollow part, the volume of the hollow part can be increased, and the screen occupation ratio of the display device is reduced. The display device provided by the embodiment has the advantages that the first conductive structure is arranged on one side, away from the opposite substrate, of the array substrate, static charges at the hollow part can be conducted away, accumulation of the static charges at the hollow part is avoided, the problem that the static charges are remained in the liquid crystal box due to the fact that the static charges enter the display panel from the packaging structure is avoided, the static protection performance of the display device is improved, and normal display of the display device is guaranteed.
On the basis of the above solution, optionally, fig. 9 is a schematic cross-sectional structure diagram of a display device according to an embodiment of the present invention, please refer to fig. 9, where the display device further includes a first polarizer 70, and the first polarizer 70 is located on one side of the first conductive structure 30 close to the backlight module 20; the first conductive structure 30 is electrically connected to the backlight module 20 through the first polarizer 70; the sheet resistance of the first polarizer 70 is Z2, Z2 < 108Omega/□. The first conductive structure 30 is provided with an opening structure DD, and the opening structure DD exposes the first polarizer 70; the projection of the package structure 15 on the array substrate 11 does not at least partially overlap the projection of the first conductive structure 30 on the array substrate 11.
Specifically, when the voltage around the display device is greater than 12KV, the first conductive structure 30 conducts the electrostatic charge at the hollow portion CC, but since the first conductive structure 30 is closer to the edge of the hollow portion CC than the sealant, the electrostatic charge at the hollow portion CC may break down the package structure 15, thereby causing display abnormalities such as liquid crystal leakage. Therefore, in the embodiment of the invention, the opening structure DD is arranged on the first conductive structure 30, so that the projection of the opening structure DD on the array substrate 11 covers the projection of the package structure 15 on the array substrate 11, and when the first conductive structure 30 conducts away the static charge at the hollow part, because the first conductive structure 30 is close to the edge of the hollow part CC and is at a certain distance from the sealant, the problem that the static charge of the hollow part CC breaks down the package structure 15 to cause liquid crystal overflow when the display device is under ultra-high voltage such as lightning stroke can be avoided, and the effect of protecting the liquid crystal layer is achieved.
Alternatively, the opening structure DD may be filled with a support structure (not shown), and the support structure is made of an insulating material, so as to ensure the stability of the display device.
On the basis of the above solution, optionally, fig. 10 is a schematic cross-sectional structure diagram of another display device provided in the embodiment of the present invention, please refer to fig. 10, in which a second conductive structure 50 is disposed in the package structure 15; the second conductive structure 50 is electrically connected to the first conductive structure 30.
When the opposite substrate 12 is coated with the sealant 13, the coating amount of the sealant 13 is increased, and then when the opposite substrate 12 is attached to the array substrate 11, a part of the sealant 13 covers the side surface of the display panel 10, so that the second conductive structure 50 is electrically connected to the first conductive structure 30; when the first conductive structure 30 is prepared, the second conductive structure 50 and the first conductive structure 30 can be electrically connected by covering a part of the first conductive structure 30 on the frame glue 13; the second conductive structure 50 can be electrically connected with the first conductive structure 30 by separately arranging silver paste; in addition, since the second conductive structure 50 is closer to the first conductive structure 30, when the display device is under high pressure, the second conductive structure 50 and the first conductive structure 30 can form a capacitor, so that the static charges conducted away by the second conductive structure 50 can be conducted into the backlight module 20 through the first conductive structure 30, and can be dissipated through the backlight module 20.
Illustratively, the second conductive structure 50 may be formed by adding conductive particles or conductive gold balls in the package structure 15. It is also possible to provide a pillar-shaped hole in the package structure 15, and fill a metal or a metal oxide in the pillar-shaped hole to form the second conductive structure 50. Specifically, when the static charge enters the package structure 15, the static charge in the package structure 15 is conducted away through the second conductive structure 50, and because the second conductive structure 50 is electrically connected to the first conductive structure 30, the static charge conducted away by the second conductive structure 50 is conducted into the backlight module 20 through the first conductive structure 30, and is dissipated through the backlight module 20. Electrostatic charges entering the package structure 15 are prevented from entering the liquid crystal layer, further protecting the liquid crystal layer 14.
On the basis of the above solution, optionally, fig. 11 is a schematic cross-sectional structure diagram of another display device provided in the embodiment of the present invention, please refer to fig. 11, where the display device further includes a conductive layer 80 and a third conductive structure 60; the conductive layer 80 is located on a side of the opposite substrate 12 away from the array substrate 11, the third conductive structure 60 is located in the first non-display area a1, an end of the third conductive structure 60 facing the backlight module 20 is electrically connected to the backlight module 20, and an end of the third conductive structure 60 facing away from the backlight module 20 is located on a side of a contact surface of the liquid crystal layer 14 and the opposite substrate 12 facing away from the liquid crystal layer 14.
The conductive layer 80 may be a low-resistance upper polarizer, or may be a metal oxide conductive layer, such as antimony tin oxide.
Illustratively, the conductive layer 80 is electrically connected to a conductive trace (not shown) located in the first non-display area a1, and the conductive trace is grounded, so that static charges entering the display device can be conducted away, the static protection performance of the display device is improved, and normal display of the display device is ensured.
Illustratively, one end of the third conductive structure 60 facing the backlight module 20 is in contact with the backlight module 20, and one end of the third conductive structure 60 facing away from the backlight module 20 is located on a side of a contact surface of the liquid crystal layer 14 and the opposite substrate 12 facing away from the liquid crystal layer 14, that is, along a thickness direction of the display device, a height of the third conductive structure 60 is higher than a height of the liquid crystal layer, and static charges around the display device are introduced into the backlight module 20 through the third conductive structure, so as to prevent the static charges from entering the liquid crystal layer.
Illustratively, one end of the third conductive structure 60 facing the backlight module 20 is in contact with the first conductive structure 30, and is further electrically connected to the backlight module 20 through the first conductive structure 30, one end of the third conductive structure 60 facing away from the backlight module 20 is located on one side of a contact surface of the liquid crystal layer 14 and the opposite substrate 12 facing away from the liquid crystal layer 14, the third conductive structure 60 guides the static charge around the display device to the first conductive structure 30, the first conductive structure 30 guides the static charge to the backlight module 20, and the static charge is dissipated through the backlight module 20.
Illustratively, one end of the third conductive structure 60 facing the backlight module 20 is in contact with the first polarizer 70, and is further electrically connected to the backlight module 20 through the first polarizer 70, one end of the third conductive structure 60 facing away from the backlight module 20 is located on a side of a contact surface of the liquid crystal layer 14 and the opposite substrate 12 facing away from the liquid crystal layer 14, and the third conductive structure 60 guides static charges around the display device to the backlight module 20 through the first polarizer 70, and is dissipated through the backlight module 20.
It should be noted that fig. 11 illustrates only one end of the third conductive structure 60 facing the backlight module 20 to contact the backlight module 20, and the static charge conducted by the third conductive structure 60 is conducted to the backlight module 20. In addition, the end of the third conductive structure 60 facing the backlight module 20 may not contact with the backlight module 20, the first conductive structure 30, or the first polarizer 70, and the end of the third conductive structure 60 facing the backlight module 20 is electrically connected to the backlight module 20 through other films or circuit traces (not shown), so as to introduce the static charge led out by the third conductive structure 60 into the backlight module 20.
On the basis of the above scheme, optionally, the hollow portion CC is correspondingly provided with a light sensing device, and the light sensing device includes at least one of a proximity sensor, a camera assembly and a flash lamp.
Through setting up the light sense device at fretwork portion CC, improve display device's space utilization, reduce display device's screen and account for the ratio, be favorable to realizing comprehensive screen design.
On the basis of the above scheme, optionally, the third conductive structure 60 includes conductive silver paste.
Static charges around the display device are conducted into the backlight module 20 through the conductive silver paste, and the static charges are dissipated through the backlight module 20.
It should be noted that, as can be understood by those skilled in the art, the materials of the second conductive structure 30 and the third conductive structure 60 include, but are not limited to, the above examples, as long as the electrostatic charge can be introduced into the backlight module 20.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. A display device, comprising: a display area and a first non-display area surrounding the display area;
the display panel comprises an array substrate and an opposite substrate;
the backlight module is arranged on one side of the array substrate, which is far away from the opposite substrate;
the first conductive structure is arranged on one side, close to the backlight module, of the array substrate and is electrically connected with the backlight module;
the opposite substrate comprises a black matrix; the vertical projection of the first conductive structure on the opposite substrate is positioned in the black matrix;
the display device further comprises a first polaroid, and the first polaroid is positioned on one side, close to the backlight module, of the first conductive structure; the first conductive structure is electrically connected with the backlight module through the first polaroid;
the square resistance of the first polarizer is Z2, and Z2 is less than 108 Ω/□；
The display device further comprises a second non-display area and at least one hollow part;
the second non-display area surrounds the hollow-out part, and the display area surrounds the second non-display area;
the hollow-out part penetrates through the display device along the thickness direction of the display device;
arranging a packaging structure in the second non-display area; the packaging structure is positioned between the array substrate and the opposite substrate;
the first conductive structure is provided with an opening structure, and the opening structure exposes the first polaroid;
the projection of the packaging structure on the array substrate is at least partially not overlapped with the projection of the first conductive structure on the array substrate.
2. The display device according to claim 1, wherein the first conductive structure is made of a transparent material.
3. The display device as claimed in claim 1, wherein the sheet resistance of the first conductive structure is Z1, Z1 < 108Ω/□。
4. The display device according to claim 1, wherein a second conductive structure is provided inside the encapsulation structure; the second conductive structure is electrically connected with the first conductive structure.
5. The display device according to claim 1, further comprising a conductive layer and a third conductive structure; the display panel further includes a liquid crystal layer;
the conducting layer is positioned on one side of the opposite substrate far away from the array substrate;
the third conductive structure is located in the first non-display area, faces towards one end of the backlight module and is electrically connected with the backlight module, and one end of the third conductive structure, which deviates from the backlight module, is located on one side, away from the liquid crystal layer, of the contact surface of the opposite substrate.
6. The display device according to claim 1, wherein the hollow portion is correspondingly provided with a light sensing device, and the light sensing device comprises at least one of a proximity sensor, a camera assembly and a flash lamp.
7. The display device according to claim 5, wherein the third conductive structure comprises conductive silver paste.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109343285B (en) * | 2018-10-31 | 2021-08-13 | 厦门天马微电子有限公司 | Display panel and display device |
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